No guarantees, but something that might work & allow you to change the PV in memory is Cheat Engine (100% free. Note: decline the additional software when installing tho). Can take a while to get the principles of using it down, but there's plenty yt vids/forums on how to use it dotted around the net.
Very basically, you start Cheat Engine, then start the game & while the game is active & selected for monitoring in CE (HInt: button > select 'GTA5.exe') , you perform searches for values/names etc in memory. With multiple scans/searches inbetween changing things in-game, it's possible to narrow down results to one memory address. You then use CE to edit that memory address & force it to always be the value that you want.
I really don't have much experience using it, & a lot depends on how the game uses memory, whether it always uses the same memory address to store info or whether that's randomised on each game start etc. Memory addresses usual change if a game '.exe' is updated also, but it might be something you want to look into etc
You can convert plain english game names etc to hex using OpenIV > 'Tools' tab > 'Hash Generator' > select 'Hex' dot select (bottom left-ish) > '[Generate]' (hex value then displayed in righthand box) if you need to search for stuff in hex format ('buffalo2' = '0x2BEC3CBE' etc)